A refreshable Braille display is an electronic device that displays visual information (text) as Braille (text) on a Braille display.
A refreshable Braille display can also be used as a Braille Keyboard. Utilize six-key entry (similar to a Perkins Brailler), to navigate your iOS device, input/enter text, using contracted or un- contracted Braille.
A refreshable Braille display also be used as your visual display like a monitor. It tactually displays information as Braille text.
A refreshable Braille display can also be used to move the VoiceOver cursor or open Apps much like a computer mouse. Move the VoiceOver cursor anywhere within line displayed by pressing the corresponding router key.
A refreshable Braille display also functions as your touch screen. Open Apps, type in forms, move sliders, and click buttons using the router keys. For example, to send an email you tap the send button. The same is true while using a refreshable Braille display. Visually I see a button on the screen that says send. Tactually on the refreshable Braille display, the word "send btn" is displayed in Braille. Simply press any router key within the word to activate the "send btn". You could press s,e, n, d, b, t, or n: VoiceOver doesn't care.
Refreshable Braille Displays
What's a Refreshable Braille Display?